Battery charger



FIG. 1 is a perspective view of a battery charger showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for battery charger, as shown and described. 